Overview
The Allen-Bradley 1771-WF is a PLC-5 series field wiring arm terminal block engineered for secure, flexible wire interconnection between plant wiring and Allen-Bradley 1771 series I/O modules. This pivoting wiring arm allows modules to be removed from the chassis without disconnecting field wiring—a critical feature for system maintenance and troubleshooting without production downtime.
Key Features
- 18 gold-plated terminals for enhanced electrical performance and corrosion resistance
- Supports 8 I/O connection points for efficient wiring management
- Conformal coating protects against caustic chemicals and moisture in industrial environments
- Pivoting design allows module removal without field wire disconnection
- Compatible with spade-lug or direct clamp wire connections (AWG 14 wire compatible)
- No external power required for operation
Technical Specifications
- Terminal Count: 18 gold-plated terminals
- I/O Points: 8
- Dimensions: 115 × 317 × 160 mm (4.5 × 12.4 × 6.3 inches)
- Weight: 0.2 lbs (0.1 kg)
- Material: Thermoplastic housing with conformal coating
- Wire Gauge: Supports AWG 14
- Operating Environment: Protected against caustic chemicals and moisture
Typical Applications
- Industrial control and automation systems using PLC-5 architecture
- Discrete and analog I/O module field wiring termination
- Manufacturing facilities requiring hot-swap module capability
- Legacy automation systems requiring field-replaceable wiring terminals
- General plant wiring interconnection to PLC-5 chassis-mounted modules
Compatibility & Replacements
Compatible With
- Allen-Bradley PLC-5 chassis and I/O modules (1771 series)
- Allen-Bradley bulletin 1771 product line
- Standard industrial automation wiring (AWG 14)
- Plant electrical control systems requiring field terminal blocks
Replaces / Drop-In Replacement For
- Damaged or worn 1771-WF units requiring field replacement
- Verify with your system integrator before substituting alternative models
- This unit is a direct replacement for equivalent 1771-WF applications
Works With
- PLC-5 processor modules and remote I/O racks
- Allen-Bradley digital and analog input/output modules
- Field wiring terminated via spade-lug or direct clamping
- TTL and analog I/O signal conditioning
